Merge "arm64: kasan: Increase stack size for KASAN_EXTRA"

/*

 * KASAN requires 1/8th of the kernel virtual address space for the shadow

 * region. KASAN can bloat the stack significantly, so double the (minimum)

 * stack size when KASAN is in use.

 * stack size when KASAN is in use, and then double it again if KASAN_EXTRA is

 * on.

 */

#ifdef CONFIG_KASAN

#define KASAN_SHADOW_SIZE	(UL(1) << (VA_BITS - 3))

#ifdef CONFIG_KASAN_EXTRA

#define KASAN_THREAD_SHIFT	2

#else

#define KASAN_THREAD_SHIFT	1

#endif /* CONFIG_KASAN_EXTRA */

#else

#define KASAN_SHADOW_SIZE	(0)

#define KASAN_THREAD_SHIFT	0